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1. 发明授权

US07321698B2 Methods and apparatus for transform coefficient filtering 有权
标题翻译：变换系数滤波的方法和装置
公开(公告)号：US07321698B2
公开(公告)日：2008-01-22
申请号：US11514122
申请日：2006-08-30
申请人： Fang Wu , Ke Shen , Yi Tong Tse , Sangeeta Ramakrishnan
发明人： Fang Wu , Ke Shen , Yi Tong Tse , Sangeeta Ramakrishnan
IPC分类号： G06K9/46
CPC分类号： H04N19/40 , H04N19/124 , H04N19/132 , H04N19/18 , H04N19/48 , H04N19/61
摘要： According to the present invention, methods and apparatus for filtering transform coefficients are provided. Transform coefficients associated with an input bit sequence can be zeroed to provide modified transform coefficients associated with an output bit sequence. The transform coefficients may represent information in a portion of data such as a video frame, a picture, or an audio stream. In one example, the transform coefficients are DCT coefficients of an MPEG-2 video sequence. The transform coefficients are filtered to provide modified transform coefficients associated with an output bit sequence. The output bit sequence is a rescaled version of the input bit sequence.
摘要翻译：根据本发明，提供了用于滤波变换系数的方法和装置。可以将与输入比特序列相关联的变换系数归零，以提供与输出比特序列相关联的修改的变换系数。变换系数可以表示诸如视频帧，图片或音频流的数据的一部分中的信息。在一个示例中，变换系数是MPEG-2视频序列的DCT系数。对变换系数进行滤波以提供与输出比特序列相关联的修改的变换系数。输出位序列是输入位序列的重新定标版本。

2. 发明授权

US07162097B1 Methods and apparatus for transform coefficient filtering 有权
标题翻译：变换系数滤波的方法和装置
公开(公告)号：US07162097B1
公开(公告)日：2007-01-09
申请号：US09867966
申请日：2001-05-29
申请人： Fang Wu , Ke Shen , Yi Tong Tse , Sangeeta Ramakrishnan
发明人： Fang Wu , Ke Shen , Yi Tong Tse , Sangeeta Ramakrishnan
IPC分类号： G06K9/46
CPC分类号： H04N19/40 , H04N19/124 , H04N19/132 , H04N19/18 , H04N19/48 , H04N19/61
摘要： According to the present invention, methods and apparatus for filtering transform coefficients are provided. Transform coefficients associated with an input bit sequence can be zeroed to provide modified transform coefficients associated with an output bit sequence. The transform coefficients may represent information in a portion of data such as a video frame, a picture, or an audio stream. In one example, the transform coefficients are DCT coefficients of an MPEG-2 video sequence. The transform coefficients are filtered to provide modified transform coefficients associated with an output bit sequence. The output bit sequence is a rescaled version of the input bit sequence.
摘要翻译：根据本发明，提供了用于滤波变换系数的方法和装置。可以将与输入比特序列相关联的变换系数归零，以提供与输出比特序列相关联的修改的变换系数。变换系数可以表示诸如视频帧，图片或音频流的数据的一部分中的信息。在一个示例中，变换系数是MPEG-2视频序列的DCT系数。对变换系数进行滤波以提供与输出比特序列相关联的修改的变换系数。输出位序列是输入位序列的重新定标版本。

3. 发明申请

US20060291729A1 Methods and apparatus for transform coefficient filtering 有权
标题翻译：变换系数滤波的方法和装置
公开(公告)号：US20060291729A1
公开(公告)日：2006-12-28
申请号：US11514122
申请日：2006-08-30
申请人： Fang Wu , Ke Shen , Yi Tse , Sangeeta Ramakrishnan
发明人： Fang Wu , Ke Shen , Yi Tse , Sangeeta Ramakrishnan
IPC分类号： G06K9/36
CPC分类号： H04N19/40 , H04N19/124 , H04N19/132 , H04N19/18 , H04N19/48 , H04N19/61
摘要： According to the present invention, methods and apparatus for filtering transform coefficients are provided. Transform coefficients associated with an input bit sequence can be zeroed to provide modified transform coefficients associated with an output bit sequence. The transform coefficients may represent information in a portion of data such as a video frame, a picture, or an audio stream. In one example, the transform coefficients are DCT coefficients of an MPEG-2 video sequence. The transform coefficients are filtered to provide modified transform coefficients associated with an output bit sequence. The output bit sequence is a rescaled version of the input bit sequence.
摘要翻译：根据本发明，提供了用于滤波变换系数的方法和装置。可以将与输入比特序列相关联的变换系数归零，以提供与输出比特序列相关联的修改的变换系数。变换系数可以表示诸如视频帧，图片或音频流的数据的一部分中的信息。在一个示例中，变换系数是MPEG-2视频序列的DCT系数。对变换系数进行滤波以提供与输出比特序列相关联的修改的变换系数。输出位序列是输入位序列的重新定标版本。

4. 发明授权

US07054362B1 Methods and apparatus for updating a reduction ratio 有权
标题翻译：用于更新减速比的方法和装置
公开(公告)号：US07054362B1
公开(公告)日：2006-05-30
申请号：US09867967
申请日：2001-05-29
申请人： Ke Shen , Yi Tong Tse
发明人： Ke Shen , Yi Tong Tse
IPC分类号： H04B1/66 , H04B11/02 , H04B11/04 , H04B7/12
CPC分类号： H04N19/40 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/149 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/48 , H04N19/61
摘要： According to the present invention, methods and apparatus for updating reduction ratios are provided. An input bit sequence can be altered to provide modified output bit sequence. The input bit sequence may represent information in a portion of data such as a video sequence, a picture, or an audio stream. In one example, the bit sequence is an MPEG-2 video sequence. The input bit sequence is altered using a reduction ratio to provide a modified output bit sequence. The reduction ratio can be continually updated using rate control information to achieve a target reduction ratio for the input bit sequence.
摘要翻译：根据本发明，提供了用于更新减速比的方法和装置。可以改变输入比特序列以提供修改的输出比特序列。输入比特序列可以表示诸如视频序列，图片或音频流的数据的一部分中的信息。在一个示例中，比特序列是MPEG-2视频序列。使用减小比改变输入比特序列以提供修改的输出比特序列。可以使用速率控制信息来连续地更新缩小比率，以实现输入比特序列的目标缩小率。

5. 发明授权

US07986730B1 Methods and apparatus for updating a reduction ratio 有权
标题翻译：用于更新减速比的方法和装置
公开(公告)号：US07986730B1
公开(公告)日：2011-07-26
申请号：US11407010
申请日：2006-04-18
申请人： Ke Shen , Yi Tong Tse
发明人： Ke Shen , Yi Tong Tse
IPC分类号： H04N7/12 , H04N11/02 , H04N11/04 , H04B1/66
CPC分类号： H04N19/40 , H04N19/117 , H04N19/124 , H04N19/132 , H04N19/149 , H04N19/152 , H04N19/172 , H04N19/176 , H04N19/18 , H04N19/48 , H04N19/61
摘要： According to the present invention, methods and apparatus for updating reduction ratios are provided. An input bit sequence can be altered to provide modified output bit sequence. The input bit sequence may represent information in a portion of data such as a video sequence, a picture, or an audio stream. In one example, the bit sequence is an MPEG-2 video sequence. The input bit sequence is altered using a reduction ratio to provide a modified output bit sequence. The reduction ratio can be continually updated using rate control information to achieve a target reduction ratio for the input bit sequence.
摘要翻译：根据本发明，提供了用于更新减速比的方法和装置。可以改变输入比特序列以提供修改的输出比特序列。输入比特序列可以表示诸如视频序列，图片或音频流的数据的一部分中的信息。在一个示例中，比特序列是MPEG-2视频序列。使用减小比改变输入比特序列以提供修改的输出比特序列。可以使用速率控制信息来连续地更新缩小比率，以实现输入比特序列的目标缩小率。

6. 发明授权

US07266132B1 Flexible memory allocation for data transmission 有权
标题翻译：弹性内存分配用于数据传输
公开(公告)号：US07266132B1
公开(公告)日：2007-09-04
申请号：US10280697
申请日：2002-10-24
申请人： Xiaomei Liu , Ke Shen
发明人： Xiaomei Liu , Ke Shen
IPC分类号： H04J3/02
CPC分类号： H04N21/238 , G06F12/0223 , H04N21/23406
摘要： Described herein are data transmission systems and methods that employ flexible memory usage techniques. The techniques allocate memory to include a plurality of block pools, where each block pool includes a set of blocks having a memory size common to the block pool. The number of block pools and common memory size for each may be determined according to the current transmission demands for the bit streams and channels being serviced. A processor for the network device then allocates data from multiple bit streams into a block in one of the block pools based on the memory requirements for the incoming data. The number of blocks may also be varied based on changing transmission demands.
摘要翻译：这里描述的是采用灵活的存储器使用技术的数据传输系统和方法。这些技术分配存储器以包括多个块池，其中每个块池包括具有块池共用的存储器大小的一组块。可以根据对正在服务的比特流和信道的当前传输需求来确定每个块池的数量和公共存储器大小。然后，用于网络设备的处理器基于对输入数据的存储器要求，将数据从多个比特流分配到块池中的一个块中。块的数量也可以根据变化的传输需求而变化。

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